期刊
INTERNATIONAL JOURNAL OF PAVEMENT ENGINEERING
卷 19, 期 6, 页码 479-488出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/10298436.2016.1175562
关键词
Asphalt pavement; bearing capacity; non-destructive testing; semi-analytical finite element method; traffic speeds; back-calculation
类别
资金
- German Research Foundation (DFG) [FOR 2089, FE 04.0259/2012/NGB, FE 88.0137/FE88.0138]
- Federal Ministry of Transport and Digital Infrastructure [FOR 2089, FE 04.0259/2012/NGB, FE 88.0137/FE88.0138]
Bearing capacity is a key index in pavement management systems in many countries, which reflects the essential material properties of asphalt pavements. Many stationary measuring methods have been undertaken in the past; current assessment of the bearing capacity tends towards fast and continuous measurements at traffic speed for a network analysis. The conventional evaluation using stationary loads do not represent real traffic loading condition; therefore the results will inevitably lead to discrepancies from reality. A specific computational program SAFEM based on semi-analytical finite element method is proposed to overcome the difficulty. The reliability and efficiency of the SAFEM is proved by verification with commercial FE software ABAQUS and field measurements. The variation tendency of the back-calculated bearing capacity has a quite good negative linear relation with the number of loading cycles in the experiment. The investigation shows this proposed assessment system is a feasible option for the fast and reliable analysis of the pavement bearing capacity at a network level for road administrations.
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